Le Chromosome eyongezelelweyo ithinta zonke iiNdawo zeBhunga
Ama-chromosomes abantu afika kuma-paire angama-23, ngamnye umzali unikeza i-chromosome enye kwibini nganye. I-Trisomy 18 (ebizwa nangokuthi i-Edwards syndrome) yimeko yesimo somzimba apho i-chromosome enye (i-chromosome 18) i-triplet endaweni yesibini. NjengeTrisomy 21 ( Down syndrome ), i-Trisomy 18 ithintela zonke iifom zomzimba kwaye ibangela izici zobuso ezihlukileyo.
I-Trisomy 18 ivela kwi-1 kwi-6,000 yokuzalwa.
Ngelishwa, ezininzi iintsana ezine-Trisomy 18 ziyafa ngaphambi kokuzalwa, ngoko ke iziganeko zangempela zengxaki ziphezulu. I-Trisomy 18 ithinta abantu bazo zonke iintlanga.
Iimpawu
I-Trisomy 18 ithintela kakhulu zonke iinjongo zomzimba zomzimba. Iimpawu zingabandakanya:
- Inkqubo yokukhathazeka kunye nengqondo yengqondo kunye nokuphuculwa kwentuthuko, ithoni ephakamileyo ye-muscle, ukuxhatshazwa , kunye nokukhubazeka okwenyama njengokonakala kweengqondo
- Intloko kunye nobuso - intloko encinci (i- microcephaly ), amehlo amancinci, isohlo olubanzi, umhlathi omncinci omncinane
- Intliziyo - iinjongo zesifo senhliziyo esinjengenkunkuma ye-septal defect
- Amathambo - ukukhawuleza okukhulayo kokukhula, izandla ezinamathele kunye neminwe yesi-5 ngaphezulu kweminye, kunye nezinye iimpazamo zezandla neenyawo
- Iingcamango zendlela yokugaya inyama, i-urinary tract and genitals
Ukuxilongwa
Ukubonakala komntwana ekuzalweni kuya kuphakamisa ukuxilongwa kwe-Trisomy 18. Nangona kunjalo, ininzi intsana ixilongwa ngaphambi kokuzalwa ngu-amniocentesis ( ukuhlolwa kofuzo lwe-amniotic fluid).
Izilwanyana ezincinci zentliziyo nesisu zisenokubona ukungaqhelekanga, njengokuba zinokuthi x-ray zamasondo.
Unyango
Ukunyamekela unyango kubantu abaneTrisomy 18 kuyamxhasa, kwaye ijolise ekuboneleleni ukutya, ukunyanga izifo kunye nokulawula iingxaki zentliziyo.
Ngexesha leenyanga zokuqala zobomi, iintsana ezineTrisomy 18 zifuna unonophelo lwezonyango.
Ngenxa yeengxaki zezokwelapha eziyinkxalabo, kubandakanya ukukhubazeka kwentliziyo kunye nezifo ezithintekayo, iintsana ezininzi zinenkinga yokusinda kwiminyaka eyi-1 ubudala. Intuthuko ekunyamekelweni kwezonyango ngexesha elizayo, ngokuzayo, kunceda abantwana abaninzi abaneTrisomy 18 bahlala ebuntwaneni nangaphezulu.
Umthombo:
"Yintoni i-Trisomy 18?" I-Trisomy 18 Foundation. 7 uMeyi 2009.
Ehlelwe nguRichard N. Fogoros, MD